ExtrudoWhy is my 3D print uneven or rough vertical walls?
Uneven or rough vertical walls is usually caused by extrusion amount is inconsistent, or the machine is vibrating during wall printing. Vertical walls look bumpy, inconsistent, or have visible ridges instead of being smooth
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Quick reference
| Defect | Most likely cause | First thing to try |
|---|---|---|
| Uneven or rough vertical walls | Extrusion amount is inconsistent, or the machine is vibrating during wall printing | Calibrate flow rate |
What it looks like
Vertical walls look bumpy, inconsistent, or have visible ridges instead of being smooth
Most likely cause
Extrusion amount is inconsistent, or the machine is vibrating during wall printing
How do I fix uneven or rough vertical walls? Step-by-step
- 1
Calibrate flow rate
Print a calibration cube and measure wall thickness, adjusting flow percentage until it matches the target.
Done when: Wall thickness is consistent within 0.05mm around the whole print
- 2
Tighten belts and check the frame
Check belt tension and frame rigidity — looseness shows up as wall inconsistency.
Done when: No visible wobble in the frame or belts when tested by hand
Frequently asked
What causes uneven or rough vertical walls in 3D prints?
Extrusion amount is inconsistent, or the machine is vibrating during wall printing
How do I fix uneven or rough vertical walls on my printer?
Follow the step-by-step fix above, starting with "Calibrate flow rate". Each step includes a "done when" check so you know whether it worked before moving on.
Is this fix confirmed by other makers?
This entry is part of Extrudo's seeded defect library. Confirmation counts appear once real users report the fix worked.
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